Glass heat treat machinery

ABSTRACT

A glass making machine and particularly a heat treat machine wherein open-ended hollow glass articles are supported on carriages moved in an endless path by a conveyor. Each carriage pivotally supports a plurality of heads which, in turn, rotatably support the hollow glass articles. The conveyor moves the carriages and in turn the articles through a plurality of work zones of heat treatment including heating, quenching and cooling zones. In the heat treat zones, manifolds are mounted along the path of the articles and are equipped with burners which impinge flames on the workpiece. A shield means is provided to prevent the flame from direct impingement on the carriage apparatus. As the articles are moved through a work zone, the supports on the heads are rotated to rotate the articles. A hold down pad having a layer of low friction material engages the closed bottom of the inverted article. The hold down pad maintains the article in place during heat treatment.

United States Patent [191 Yakubek et al.

[ June 11, 1974 GLASS HEAT TREAT MACHINERY [75] Inventors: Louis P. Yakubek; George R.

Obenshain, both of Perrysburg, Ohio [73] Assignee: Owens-Illinois, lnc., Toledo, Ohio [22] Filed: Sept. 27, 1972 [21] Appl. No.: 292,741

Related U.S. Application Data [62] Division of Ser. No. 82,987, Oct. 22, 1970.

[56] References Cited UNITED STATES PATENTS 633,985 10/1899 Buttler ..65/284 1,473,675 11/1923 Halversen 65/284 X 2,209,252 7/1940 Stewart et a1 65/284 X 2,366,609 l/1945 Gates 4 i 65/244 3,510,287 5/1970 Panczner 65/284 3,694,178 9/1972 Hennequin 65/244 X Attorney, Agent, or FirmJ, R. Nelson; E. .l. Holler [57] ABSTRACT A glass making machine and particularly a heat treat machine wherein open-ended hollow glass articles are supported on carriages moved in an endless path by a conveyor. Each carriage pivotally supports a plurality of heads which, in turn, rotatably support the hollow glass articles. The conveyor moves the carriages and in turn the articles through a plurality of work zones of heat treatment including heating, quenching and cooling zones. In the heat treat zones, manifolds are mounted along the path of the articles and are equipped with burners which impinge flames on the workpiece. A shield means is provided to prevent the flame from direct impingement on the carriage apparatus. As the articles are moved through a work zone, the supports on the heads are rotated to rotate the articles. A hold down pad having a layer of low friction material engages the closed bottom of the inverted article. The hold down pad maintains the article in place during heat treatment.

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1. In a glass making machine, the combination comprising an endless conveyor having a reach which extends along a horizontal path, a plurality of work supporting heads pivoted to longitudinally space points on said conveyor for swinging movement about generally horizontal axes generally parallel to the reach, a support rotatably mounted in said head and having an opening therethrough for receiving a glass article in a manner such that the glass article is supported with at least one end thereof exposed, means along said path for holding said heads in a manner such that the articles are supported in generally vertical position with the one end exposed, means in the area of said last mentioned means along said portion of the path for engaging said support and rotating said support about the axis of the opening therethrough, a plurality of manifolds along said horizontal path of said articles, a plurality of burners for emanating flames, each manifold supporting a plurality of burners for directing flames from said burners transversely of said horizontal path, and means for supporting each manifold in operating position between the conveyor and the path of the articles such that the flames are directed only transversely away from the conveyor across the path of the articles and for moving each said manifold transversely in the direction of the flames emanating from the burners away from the operating position along the predetermined path of the articles and transversely in a direction opposite to the flames toward said operating position.
 2. The combination set forth in claim 1 including means for adjusting the position of the said manifolds transversely of said horizontal path when the manifolds are in operative position.
 3. The combination set forth in claim 1 including means along said horizontal path for preventing direct impingement of flames from said burners on said chain, heads and track.
 4. The combination set forth in claim 3 including a hold down member for each said article including a pad on each said hold down member for engaging the closed end of a container on said first carrier.
 5. The combination set forth in claim 4 wherein said last-mentioned pad is replaceable.
 6. The combination set forth in claim 4 wherein said pad includes a layer of low friction material.
 7. The combination set forth in claim 4 wherein said pad comprises a sheet metal member removably mounted on the lower end of said hold down member, and a layer of low friction material on said sheet metal member. 